22009662 has 36 divisors (see below), whose sum is σ = 50669736. Its totient is φ = 6903360.

The previous prime is 22009649. The next prime is 22009699. The reversal of 22009662 is 26690022.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3087 + ... + 7317.

Almost surely, 2^22009662 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22009662, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25334868).

22009662 is an abundant number, since it is smaller than the sum of its proper divisors (28660074).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22009662 is a wasteful number, since it uses less digits than its factorization.

22009662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4273 (or 4253 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 22009662 is about 4691.4456194227. The cubic root of 22009662 is about 280.2449472195.

Adding to 22009662 its reverse (26690022), we get a palindrome (48699684).

The spelling of 22009662 in words is "twenty-two million, nine thousand, six hundred sixty-two".